A study was conducted at the Wadafiea landfill in Al Khartoum Bahri (North), Sudan, to determine the level of microbial contamination in water samples collected from nearby areas around the landfill. The purpose of this study was to evaluate the impact of solid waste disposal in open dumps and assess the associated risks to water. The study tested for coliform bacteria (E.coli) and compared the seasonal differences between the samples collected during the dry and rainy seasons. The results indicated higher levels of E.coli contamination in each season, with the rainy season samples showing particularly high levels (66.03 × 10⁴ cfu/ml) compared to the dry season (31.93 × 10⁴ cfu/ml). It was concluded that the groundwater was highly polluted due to the current landfill location. The local authorities and the department of solid waste management were advised to close this landfill and relocate it to the outskirts of Al Khartoum Bahri (North) city. Additionally, it was recommended that international regulations for standard landfills should be maintained and implemented.

The rapid increase in population, urbanization, industrialization, and changes in consumption patterns have given rise to many environmental problems, which mainly include air, land, and water pollution. In Khartoum North, Khartoum State, Sudan, there was a lack of a compatible solid waste management system. These resulted in a decline in environmental health, and the majority of the yards were turned into dumps (kusha). The current study focused on the effects of uncontrolled dumping of municipal solid waste on groundwater, as well as assessing the risk of physiochemical concentrations in the water around the dumpsite and comparing the differences between the dry and rainy seasons in water samples at Wadafiea Dumpsite, Khartoum North, Sudan. Water parameters such as TSS, Cl⁻, TDS, Ca, Mg, SAR, and Na exceeded the controlled 1 (1.333) and 2 (1.332) levels of water and were within the Sudanese Maximum Values, the bounds of Canadian Guideline Values, and WHO Values.

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